Feed-water heater and purifier



(No Model.) v

' D. UOCHRANE.

EEED WATER HEATER AND PUEIEIEE. No. 313,287; Patented Mar. 3,1885.

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WITNESSESC MEM N. PETRS.- PhctsrLilhogmpher. Washingmn. D. c.

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DAVID COCHRANE, OF PHILADELPHIA, PENNSYLVANIA.

FEED-WATER HEATER AND PURlFlER.

3?ECIFI-GATION forming part of Letters Patent No. 313,287, dated March 3, 1885.

Application tiled September 18, 1881. (No model.)

To aZZ whom it may concern:

Be it known that I, DAVID GoorrniiNn, a subj eet of the Queen of Great Britain, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Feed-Vater Heaters and Purifiers, which improvement is full y set forth in the following specification and accompanying drawings, in which Figure 1 represents a central vertical sec tion of the device. Fig. 2 represents a cen tral vertical section at right angles to the one shown in Fig. 1. Fig. 3 represents a front view of a detached part.

Similar letters of reference indicate corresponding parts in the several figures.

Referring to the drawings, A represents a metallic vessel. made either cylindrical or square, and having either a flat or conical top and bottom constructed integral therewith or in separate parts, the bottom being preferably of conical shape for cleansing purposes.

To the upper part of the vessel is attached a I pipe, B, for the passage of COltl water into the j the exit-pipe.

same.

\Vithin the vessel A are trays O O 0, se-

' cured to the sides thereof, and said trays are wedge-shaped in section, as shown in the drawings, so as to prevent their being broken by the freezing of water left therein when not in use, and have at the place of discharge a corrugated lip, D, so that the Water will fall therefrom in spray. A short distance behind this lip is placed a plain-edged bar, E, secured to the sides of the tray, and raised a little higher than the lip for the purpose of keeping back the scum which may be upon the water.

F and G respectively represent the inlet and outlet passages for the steam introduced into the heater.

H represents the pipe for the outlet of the water after being heated. Vithin the heater is a hood, J, secured to the sides thereof in such a manner that water to the outlet Hwill pass through the opening in the lower part of the hood before its exit through the pipe H. Secured to the top of the hood is an upright pipe, J communicating with the spaces above and below the hood, and serving for an outlet for air or vapor which may have gathered below the hood, said air or vapor rising through the pipe into the airspace above the water-level in the vessel.

K represents a box or skimmer attached to the side of the vessel A, having narrow openings L below the level or" the inlet steam-pipe F, so as to prevent an overflow ofwater therein.

M represents a waste-pipe for the outlet of scum and water in the box K.

N represents any ordinary blowoff cook or valve.

O O 0 represent hand-holes, suitably covered, for the purpose of cleansing the interior of the vessel.

The operation of the device is as follows: The cold water passing into the vessel by the pipe B falls upon the series of trays O C G, where it is heated by the steam which enters the vessel at F. The corrugated lips of the trays, by scattering or dividing the water as it passes therefrom, permits the water to more readily absorb the steam. As the water falls into the lower part of the vessel it passes beneath the hood before its exit at the outlet H, the hood serving to keep back the scum from If the outflow of water from the heater is not so great as the inflow therein,

the water will rise in the lower part of the vessel until the level of the openings in the box or skimmer K is reached, when the extra water and scum floating thereon will enter into the box K and pass out through the pipe M.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is- V 1. In a feed-water heater and purifier, a tray having a lip and a skimming-bar, substantially as and for the purpose set forth.

2. In a feed-water heater and purifier, a tray having a lip and a skimming-bar, said lip being corrugated, substantially as and for the purpose set forth.

3. In a feed-water heater, a tray having its lower portion of a wedge shape and provided with alip and a skim ming-bar, substantially as and for the purpose set forth.

4. In a feed-water heater and purifier, a tray having a wedge-shaped form, a corrugated lip, and a plain -edged bar, substantially as described.

5. In a feed-water heater and purifier, a hood partially covering within the heater the water-outlet pipe, and having an opening in its side corresponding with the opening of the outlet-pipe, substantially as and for the purpose set forth.

6. In afeed-water heater and purifier, the skimmer-box K, having a side opening, L, the said skimmer K being directly attached to the side of the vessel A, and having an outlet-pipe, M, substantially as and for the purpose set forth.

7. The vessel A, in combination with the trays OO 0, having skimming-bars, and hood J, having pipe J, substantially as and for the purpose set forth.

8. The vessel A, in combination with the trays O C O,hood J, having pipe J, and skimmer-box K, the opening at the upper part of said pipe J being above the opening L of the skimmer K, substantially as and for the purpose set forth.

9. In a feed-water heater and purifier, the 20 combination of the vessel A with trays C O 0, having corrugated lip D, and plain edge bar E, substantially as and for the purpose set forth.

10. The combination ofthe vessel A, hood 25 J, and air and vapor discharge pipe J, substantially as and for the purpose set forth.

11. The combination of the 'vessel A, hav- DAVID OOOHRANE.

W'i tnesses:

JOHN A. VVIEDERsHEIM, A. P. GRANT. 

